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What's the best form to take magnesium glycinate?

4 min read

According to the National Institutes of Health, nearly half of all Americans consume less than the recommended amount of dietary magnesium. For those looking to supplement, knowing what's the best form to take magnesium glycinate is crucial for optimizing absorption and achieving desired health benefits, particularly for sleep and anxiety.

Quick Summary

The best form of magnesium glycinate—capsule, powder, or liquid—depends on personal preference, health goals, and tolerance. Powdered and liquid forms offer faster absorption and customisable approaches, while capsules provide unmatched convenience and consistent delivery. All forms deliver the high bioavailability and gentle digestive effects characteristic of magnesium glycinate, making it an excellent choice for promoting relaxation and wellness.

Key Points

  • High Bioavailability: Magnesium glycinate is a chelated form of magnesium, making it highly absorbable and gentle on the stomach, unlike some other forms.

  • Capsules for Convenience: Capsules offer a convenient, pre-measured, and tasteless way to take the supplement, perfect for on-the-go use.

  • Powder for Customisation: Powder provides more control, allowing for gradual adjustments to find what works for your needs.

  • Liquid for Rapid Absorption: Liquid magnesium is absorbed most rapidly by the body, which can be beneficial for those with impaired digestion.

  • Check Elemental Magnesium: Always look for the amount of elemental magnesium on the label, not just the total compound weight, to ensure proper usage.

  • Beneficial for Sleep and Anxiety: The glycine component in magnesium glycinate enhances its calming properties, making it an excellent choice for promoting sleep and reducing anxiety.

  • Consult a Doctor: It is essential to consult a healthcare provider before starting supplementation, especially if you have existing health conditions or take other medications.

  • Minimises Side Effects: Unlike magnesium citrate, magnesium glycinate is less likely to cause digestive side effects like diarrhoea.

In This Article

Before considering supplementation, it is important to understand that the information presented here is for general knowledge and should not be taken as medical advice. Always consult with a healthcare provider before starting any new supplement regimen.

Understanding Magnesium Glycinate: A Gentle and Bioavailable Form

Magnesium glycinate is a chelated form of magnesium, which means the mineral is bound to the amino acid glycine. This unique pairing provides several advantages over other magnesium supplements, such as the poorly absorbed magnesium oxide or the laxative-inducing magnesium citrate. The chelated structure makes magnesium glycinate highly bioavailable, ensuring your body can absorb and utilise it effectively. It is also famously gentle on the stomach, causing far fewer digestive issues like diarrhoea. The added glycine, an amino acid known for its calming properties, further enhances the supplement's ability to support relaxation and sleep.

Comparing Magnesium Glycinate Forms: Capsules vs. Powder

When considering what's the best form to take magnesium glycinate, the choice often comes down to personal preference for convenience, absorption speed, and taste. Capsules, powders, and sometimes liquids each offer distinct pros and cons.

Capsules/Pills

  • Convenience: Capsules are a convenient option, requiring no preparation. They are easy to take on the go and offer a precise, pre-measured amount.
  • Taste: As they are tasteless, capsules are ideal for those who dislike the flavour of magnesium supplements or simply want a no-fuss option.
  • Digestion: While the powder inside the capsule is still easily digested, it may be slightly slower than a liquid or powder mixed in water, as the capsule casing needs to dissolve first.
  • Customisation: The amount is fixed per pill, so it's less flexible for precise adjustments than a powder.

Powder

  • Customisable Approach: Powder allows for flexible approaches, making it easy to start with a certain amount and adjust gradually to find what works for your needs.
  • Faster Absorption: When mixed into water or juice, the magnesium is already dissolved and ready for absorption, potentially leading to faster uptake by the body compared to capsules.
  • Versatility: Powder can be added to a variety of beverages or foods like smoothies or yogurt, offering more mixing options.
  • Taste: The taste can be a drawback, although many products come in flavoured versions to mask the natural bitterness.

Liquids

  • Fastest Absorption: Liquid forms are often cited as the most easily and rapidly absorbed, as the body doesn't need to break down a capsule or powder.
  • Beneficial for Digestive Issues: For those with impaired digestion, a liquid can be particularly helpful for ensuring maximum bioavailability.
  • Measurement: Requires careful measurement to ensure accurate amounts, similar to powder. Some pre-measured options are available.

A Practical Comparison of Magnesium Glycinate Forms

Feature Capsules Powder Liquid
Convenience Excellent (fixed amount, portable) Good (requires mixing) Fair (requires mixing/measurement)
Absorption Speed Slower than powder/liquid Fast Fastest
Approaches to Customisation Limited High High
Taste Neutral (no taste) Can be flavoured or unflavoured Can be flavoured or unflavoured
Gastrointestinal Tolerance Excellent Excellent Excellent
Use Case Best for on-the-go or those who dislike measuring Best for customising and adding to smoothies Best for rapid absorption or sensitive digestive systems

Which Form is Right for You?

Choosing the best form ultimately depends on your lifestyle, preferences, and specific health goals. If convenience is your top priority and you prefer a fixed, tasteless amount, capsules are an excellent choice. If you want more control, desire faster absorption, or prefer mixing your supplements into food or drinks, powder is a good option. For those with particularly sensitive digestion or needing the most rapid effect, liquid forms offer an edge. The most important factor is consistent daily intake, so choose the form that you are most likely to stick with over the long term.

When buying any magnesium glycinate supplement, always check the label for the amount of elemental magnesium per serving, not just the total compound weight. The elemental magnesium is the amount your body actually absorbs. For example, a supplement with a certain amount of magnesium glycinate might contain a specific amount of elemental magnesium. Following recommendations from a healthcare professional is also critical for safety, especially for those with kidney conditions.

Conclusion

Regardless of whether you choose a capsule, powder, or liquid, the core benefit of magnesium glycinate lies in its superior bioavailability and gentle effect on the digestive system. For those seeking relaxation, better sleep, and reduced anxiety, it remains a top-tier choice among magnesium supplements. The ideal form is the one that best fits your daily routine, ensuring you get a consistent, well-absorbed approach to support your overall health and wellness. Consulting a healthcare provider can help tailor your choice to your specific needs and ensure safe, effective supplementation. For more detailed information on supplement bioavailability, the National Institutes of Health provides comprehensive resources.

About the Author

This article is a general guide and should not be considered medical advice. Always consult a healthcare professional before beginning any new supplement regimen.

National Institutes of Health Fact Sheet on Magnesium

Frequently Asked Questions

The main benefit of magnesium glycinate is its superior bioavailability and excellent gastrointestinal tolerance. It is less likely to cause digestive upset or diarrhoea compared to magnesium citrate or oxide, making it a better option for long-term supplementation, especially for relaxation and sleep.

For promoting sleep, the best form is often a personal choice based on preference. Both powder and capsules are effective. Some people prefer taking powder mixed with a warm drink for a calming evening ritual, while others prefer the convenience of capsules. The calming effects are due to the combination of magnesium and the amino acid glycine.

Magnesium glycinate powder mixed in liquid can be absorbed slightly faster than capsules because the body doesn't need to break down the capsule casing first. However, both forms are highly bioavailable, so the difference in absorption speed is often minimal. The key is consistent intake regardless of the form.

Elemental magnesium refers to the actual amount of magnesium available for the body to absorb and use from a supplement. Supplements are compounds, like magnesium glycinate, but it's the elemental magnesium part that provides the benefits. Checking for the elemental magnesium amount on the label is important to understand how much active magnesium you are consuming.

Yes, you can take magnesium glycinate in the morning, especially if you're using it for anxiety or general wellness. However, if your primary goal is to aid sleep, it may be most effective when taken closer to bedtime due to its calming properties.

Magnesium glycinate is generally well-tolerated and associated with minimal side effects. The most common, though rare, side effects include mild stomach upset or slight drowsiness, usually at higher amounts. Unlike other forms, it is much less likely to cause diarrhoea.

The time it takes to feel the effects varies by individual and health concern. Some people may notice improved sleep within a week, while noticeable reductions in anxiety or muscle cramps might take time with consistent use.

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.